package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

public class JDBCDemo7 {
    public static void main(String[] args) {
        UserInfo userInfo = InputUtil.getInputObject(new UserInfo(), "欢迎登录", "登录");
        try(
                Connection connection = DBUtil.getConnection()
        ) {
            String sql = "SELECT id,username,password,nickname,age " +
                    "FROM userinfo " +
                    "WHERE username = ? AND password = ?";
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1,userInfo.getUsername());
            ps.setString(2,userInfo.getPassword());
            ResultSet rs = ps.executeQuery();
            if (rs.next()){
                System.out.println("登录成功，欢迎您:"+rs.getString("nickname"));
            }else {
                System.out.println("登录失败,用户名或密码不正确");
            }
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

    }
}
